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geochemistry

When the dust settles: Investigating lingering health questions 10 years after 9/11

For the past 10 years, geoscientists have been helping to characterize the dust that blanketed lower Manhattan following the 9/11 attacks on the World Trade Center, hoping to determine if and how that dust may be causing long-term health problems.

12 Aug 2011

Storing CO2 in fizzy water underground

Burying carbon dioxide in underground geologic formations is an attractive option for dealing with increasing carbon dioxide in the atmosphere. But before employing such schemes, researchers need to be sure that the greenhouse gas will actually stay put. Scientists have done everything from computer modeling to pumping vast amounts of carbon dioxide into the subsurface to find out if — and how — the gas might be trapped, but gauging how sealed the formations are over geologic time scales is difficult.

10 Nov 2009

Cruising the Atlantic to trace elemental movements

When it comes to the science of climate change, one of the least understood issues is the oceans’ future in a changing global environment. Measurements over the past two decades show that the oceans’ surface waters have been warming since the 1950s, and that large influxes of carbon dioxide have already made the oceans more acidic.

20 Oct 2010